protected void removeExpandCollapseButton() {
handlerRegistrationManager.removeHandler();
if (null != colExpButton) {
colExpButton.removeFromParent();
colExpButton = null;
}
}
protected IPrimitive<?> createExpandCollapseButton() {
final boolean isExpanded = presenter.isExpanded();
final double w = getGrid().getIconSize();
final double h = getGrid().getIconSize() / 1.5;
final Rectangle rectangle =
new Rectangle(w, h).setFillAlpha(0.01).setStrokeWidth(0).setStrokeAlpha(0);
final Arrow expandArrow =
new Arrow(
new Point2D(0, h / 2),
new Point2D(w, h / 2),
h / 2,
h,
45,
90,
ArrowType.AT_END_TAPERED)
.setFillColor(getArrowOutColor())
.setFillAlpha(0.5)
.setVisible(!isExpanded);
final Arrow collapseArrow =
new Arrow(
new Point2D(w, h / 2),
new Point2D(0, h / 2),
h / 2,
h,
45,
90,
ArrowType.AT_END_TAPERED)
.setFillColor(getArrowOutColor())
.setFillAlpha(0.5)
.setVisible(isExpanded);
handlerRegistrationManager.register(
rectangle.addNodeMouseClickHandler(
nodeMouseClickEvent -> {
if (presenter.isExpanded()) {
expandArrow.setVisible(true);
collapseArrow.setVisible(false);
presenter.collapse();
} else {
expandArrow.setVisible(false);
collapseArrow.setVisible(true);
presenter.expand();
}
}));
handlerRegistrationManager.register(
rectangle.addNodeMouseEnterHandler(
nodeMouseEnterEvent -> {
stopHoverTimeoutPalette();
if (presenter.isExpanded()) {
animate(collapseArrow, getArrowHoverColor(), 1, 1);
} else {
animate(expandArrow, getArrowHoverColor(), 1, 1);
}
}));
handlerRegistrationManager.register(
rectangle.addNodeMouseExitHandler(
nodeMouseExitEvent -> {
startHoverTimeoutPalette();
if (presenter.isExpanded()) {
animate(collapseArrow, getArrowOutColor(), 0.5, 0.5);
} else {
animate(expandArrow, getArrowOutColor(), 0.5, 0.5);
}
}));
return new Group().add(expandArrow).add(collapseArrow).add(rectangle.moveToTop());
}